Inventor
ISHII KANJI
9 patents
⚠️ This page may combine multiple inventors who share the name “ISHII KANJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOCHIKI CO
5 patentsUS4369435AJan 18, 1983
Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station
HOCHIKI CO35 citations89
US4017733AApr 12, 1977
Ionization type smoke sensor
HOCHIKI CO13 citations73
US5160916ANov 3, 1992
Ionization type smoke sensor
HOCHIKI CO7 citations72
US5327119AJul 5, 1994
Ionizing smoke sensor
HOCHIKI CO6 citations61
US4142219AFeb 27, 1979
Two-wire system including signal receiving section and detection section with protected relay
HOCHIKI CO4 citations59